Vijay Durga Prasad, Dr. V. “Passenger Amenities of Indian Railways: A Study of Guntur Division of South Central Railway”. Journal of Contemporary Research in Management (JCRM) 2, no. 1 (January 7, 2013). Accessed July 2, 2025. http://jcrm.psgim.ac.in/index.php/jcrm/article/view/192.